Since the begining of the crisis more than 2,604,659 have been asociated by a hospital or postmortem study with covid 19. This work will focuse, with those patients that are confirmed by a PCR test. This are 2,273,267 that represents 87% of the cases

## Warning: `group_by_()` is deprecated as of dplyr 0.7.0.
## Please use `group_by()` instead.
## See vignette('programming') for more help
## This warning is displayed once every 8 hours.
## Call `lifecycle::last_warnings()` to see where this warning was generated.